General description
微生物淀粉酶是胞外酶，可用于多种工业应用，如面包和麦芽糖浆生产、酱油和豆面酱发酵等。从米曲霉中分离的α-淀粉酶的分子量为51kDa（沉降和扩散）和49kDa（凝胶过滤）。
Application
α-淀粉酶已被用作
- 琼脂平板和羧甲基纤维素清除试验的对照酶，用于筛选淀粉水解的纤维素酶活性，
- 以便探讨小麦淀粉在冷冻面团中
- 抑制金黄色葡萄球菌生物膜的作用。
Biochem/physiol Actions
米曲霉α-淀粉酶(Ao α-淀粉酶)酶催化可溶性淀粉和相关底物中α-1,4糖苷键的水解。这些底物被分解并释放较短的低聚糖和α-极限糊精。
Other Notes
1个酶活力单位（U）相当于在pH6.0和25℃下每分钟释放1μmol麦芽糖所需的酶量（淀粉符合Zulkowsky，货号85642，作为底物）。
用于测定食物中的脂肪；应用于糖苷键的（选择性）水解/缩合。
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signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Resp. Sens. 1
存储类别
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
法规信息
常规特殊物品
此项目有
S Wirsel et al.
Molecular microbiology, 3(1), 3-14 (1989-01-01)
We have cloned three genes (amy1, amy2 and amy3) encoding alpha-amylase in the filamentous fungus Aspergillus oryzae. The established overall sequences have a very high degree of homology, showing divergences mainly in the 3'-untranslated regions. The positions and the sequences
P C Sehnke et al.
Proceedings of the National Academy of Sciences of the United States of America, 98(2), 765-770 (2001-01-10)
In higher plants the production of starch is orchestrated by chloroplast-localized biosynthetic enzymes, namely starch synthases, ADP-glucose pyrophosphorylase, and starch branching and debranching enzymes. Diurnal regulation of these enzymes, as well as starch-degrading enzymes, influences both the levels and composition
C E Daugherty et al.
Journal - Association of Official Analytical Chemists, 66(4), 927-932 (1983-07-01)
A chloroform-methanol extraction method (complete extraction of fat in 3 min) for determining fat in processed and prepared foods has been studied collaboratively. Fourteen collaborators reported single replicate fat results on 7 samples representative of various food types and 2
全球贸易项目编号
| 货号 | GTIN |
|---|---|
| 10065-10G | 04061835511242 |
| 10065-50G | 04061835550982 |